British upper house election, 1840

The British upper house election, 1840 was held on 1 January 1840 when new peers were elected to the British House of Lords. As the result of Chartist agitation, classical liberalism became a more popular ideology among common Britons, and the Whigs increased their share of 9.78% seats, a relatively large increase; the Conservative Party lost 11.42% of its seats, leaving them with a mere 18.48% lead in house seats.